annotate test/dw_images_scaled.cc @ 677:b6ef23efdac7

always use shaded colors This makes things much simpler and improves sharing of colors. If computing two more shades really proves to be a performance issue, we can shade on demand without exposing this optimization to the interface.
author Johannes Hofmann <Johannes.Hofmann@gmx.de>
date Thu, 11 Dec 2008 23:31:03 +0100
parents e5955ab8dafb
children d7dbd3dcfa38
rev   line source
347
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1 /*
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2 * Dillo Widget
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3 *
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4 * Copyright 2005-2007 Sebastian Geerken <sgeerken@dillo.org>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 3 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 */
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20
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21
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22
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23 #include <fltk/Window.h>
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24 #include <fltk/run.h>
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25
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26 #include "../dw/core.hh"
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27 #include "../dw/fltkcore.hh"
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28 #include "../dw/fltkviewport.hh"
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29 #include "../dw/textblock.hh"
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30 #include "../dw/image.hh"
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31
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32 using namespace dw;
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33 using namespace dw::core;
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34 using namespace dw::core::style;
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35 using namespace dw::fltk;
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36
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37 static Layout *layout;
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38 static Image *image;
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39 static core::Imgbuf *imgbuf = NULL;
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40 static int imgRow = 0;
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41
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42 static void imageInitTimeout (void *data)
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43 {
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44 //imgbuf = layout->createImgbuf (Imgbuf::RGBA, 400, 200);
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45 imgbuf = layout->createImgbuf (Imgbuf::RGB, 400, 200);
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46 image->setBuffer (imgbuf);
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47 }
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48
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49 /*
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50 static void imageDrawTimeout (void *data)
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51 {
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52 if (imgbuf) {
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53 for (int i = 0; i < 1; i++) {
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54 byte buf[4 * 400];
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55 for(int x = 0; x < 400; x++) {
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56 buf[4 * x + 0] = x * 255 / 399;
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57 buf[4 * x + 1] = (399 - x) * 255 / 399;
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58 buf[4 * x + 2] = imgRow * 255 / 199;
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59 buf[4 * x + 3] = (199 - imgRow) * 255 / 199;
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60 }
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61
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62 imgbuf->copyRow (imgRow, buf);
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63 image->drawRow (imgRow);
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64 imgRow++;
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65 }
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66 }
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67
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68 if(imgRow < 200)
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69 ::fltk::repeat_timeout (0.5, imageDrawTimeout, NULL);
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70 }
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71 */
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72
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73 static void imageDrawTimeout (void *data)
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74 {
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75 if (imgbuf) {
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76 for (int i = 0; i < 1; i++) {
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77 byte buf[3 * 400];
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78 for(int x = 0; x < 400; x++) {
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79 buf[3 * x + 0] = x * 255 / 399;
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80 buf[3 * x + 1] = (399 - x) * 255 / 399;
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81 buf[3 * x + 2] = imgRow * 255 / 199;
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82 }
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83
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84 imgbuf->copyRow (imgRow, buf);
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85 image->drawRow (imgRow);
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86 imgRow++;
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87 }
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88 }
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89
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90 if(imgRow < 200)
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91 ::fltk::repeat_timeout (0.5, imageDrawTimeout, NULL);
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92 }
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93
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94 int main(int argc, char **argv)
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95 {
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96 FltkPlatform *platform = new FltkPlatform ();
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97 layout = new Layout (platform);
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98
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99 ::fltk::Window *window = new ::fltk::Window(410, 210, "Dw Scaled Image");
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100 window->begin();
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101
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102 FltkViewport *viewport = new FltkViewport (0, 0, 410, 210);
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103 layout->attachView (viewport);
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104
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105 StyleAttrs styleAttrs;
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106 styleAttrs.initValues ();
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107 styleAttrs.margin.setVal (5);
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108 styleAttrs.width = createPerLength (1.0);
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109 styleAttrs.height = createPerLength (1.0);
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110
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111 FontAttrs fontAttrs;
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112 fontAttrs.name = "Bitstream Charter";
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113 fontAttrs.size = 14;
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114 fontAttrs.weight = 400;
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115 fontAttrs.style = FONT_STYLE_NORMAL;
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116 styleAttrs.font = Font::create (layout, &fontAttrs);
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117
677
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Johannes Hofmann <Johannes.Hofmann@gmx.de>
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118 styleAttrs.color = Color::create (layout, 0x000000);
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119 styleAttrs.backgroundColor = Color::create (layout, 0xffffff);
347
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120
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121 Style *widgetStyle = Style::create (layout, &styleAttrs);
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122
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123 Textblock *textblock = new Textblock (false);
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124 textblock->setStyle (widgetStyle);
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125 layout->setWidget (textblock);
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126
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127 widgetStyle->unref();
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128
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129 styleAttrs.margin.setVal (0);
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130 styleAttrs.backgroundColor = NULL;
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131
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132 Style *imageStyle = Style::create (layout, &styleAttrs);
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133
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134 image = new dw::Image ("");
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135 textblock->addWidget (image, imageStyle);
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136 textblock->addSpace (imageStyle);
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137
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138 imageStyle->unref();
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139
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140 textblock->flush ();
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141
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142 window->resizable(viewport);
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143 window->show();
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144
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145 ::fltk::add_timeout (2.0, imageInitTimeout, NULL);
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146 ::fltk::add_timeout (0.1, imageDrawTimeout, NULL);
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147
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148 int errorCode = ::fltk::run();
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149
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150 delete layout;
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151
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152 return errorCode;
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153 }